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Crystallochemical and optical study of mixed alkaline earth-samarium fluorohalides of the lead fluorine chloride type

ContributorsKubel, Frank; Hagemann, Hans-Rudolf; Bill, Hans
Published inMaterials research bulletin, vol. 30, no. 4, p. 405-412
Publication date1995
Abstract

Single crystals X-ray diffraction was performed on five crystals with nominal compositions Sr1/2Sm1/2FCl, Sr1/2Ca1/2FCl, Sr2/3Ba1/3FCl1/3Br2/3, Sr1/2Sm1/2FCl1/2Br1/2 and Sr0.6Sm0.1Ca 0.3FCl. Population refinements confirm the presence of correlations between lattice constants and composition. A new correlation between the heavy halogen z value and the unit cell volume is found. Luminescence spectra of bivalent samarium in these crystals contribute to the structural characterization of these compounds.

Keywords
  • Alkaline earths
  • Lanthanide
  • Fluorohalides
  • Luminescent materials
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Citation (ISO format)
KUBEL, Frank, HAGEMANN, Hans-Rudolf, BILL, Hans. Crystallochemical and optical study of mixed alkaline earth-samarium fluorohalides of the lead fluorine chloride type. In: Materials research bulletin, 1995, vol. 30, n° 4, p. 405–412. doi: 10.1016/0025-5408(95)00014-3
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Journal ISSN0025-5408
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